There is a new QEMU 10.1 package available in the
After internally testing QEMU 10.1 for over a month and having this version available on the pve-test repository almost as long, we now (2025-11-04) made our QEMU 10.1 package available in the pve-no-subscription repository.
Our QEMU package version
Note: While some of our production workloads already use this version and run stable, we cannot test every possible hardware and configuration combination, so we recommend testing the upgrade before applying it to mission-critical setups.
To upgrade, make sure you have configured either the Proxmox VE No-Subscription repository or the Proxmox VE Test repositories.
Either use the web-interface to refresh and then upgrade using the Node -> Updates panel, or use a console with the following standard apt commands:
The output of
Note, as with all QEMU updates: A VM must either be completely restarted (shut it down and then start it again, or use the restart command via the CLI or web-interface) or, to avoid downtime, consider live-migrating to a host that has already been upgraded to the new QEMU package version.
While we have been successfully running our production and many test loads on this version for some time now, no software is bug-free, and often such issues are related to the specific setup. So if you encounter regressions that are definitely caused by installing the new QEMU version (and not some other change), please always include the affected VM configuration and some basic HW (e.g. CPU model) and memory details.
We welcome your feedback!
Known issues:
None at the time of publishing.
pve-test and pve-no-subscription repositories for Proxmox VE 9.After internally testing QEMU 10.1 for over a month and having this version available on the pve-test repository almost as long, we now (2025-11-04) made our QEMU 10.1 package available in the pve-no-subscription repository.
Our QEMU package version
10.1.2-1 includes some important stable fixes that have been developed since the original 10.1.0 release.Note: While some of our production workloads already use this version and run stable, we cannot test every possible hardware and configuration combination, so we recommend testing the upgrade before applying it to mission-critical setups.
To upgrade, make sure you have configured either the Proxmox VE No-Subscription repository or the Proxmox VE Test repositories.
Either use the web-interface to refresh and then upgrade using the Node -> Updates panel, or use a console with the following standard apt commands:
Bash:
apt update
apt full-upgradeThe output of
pveversion -v (or the web-interface's Node Summary -> Packages versions) should then include something like pve-qemu-kvm: 10.1.2-1Note, as with all QEMU updates: A VM must either be completely restarted (shut it down and then start it again, or use the restart command via the CLI or web-interface) or, to avoid downtime, consider live-migrating to a host that has already been upgraded to the new QEMU package version.
While we have been successfully running our production and many test loads on this version for some time now, no software is bug-free, and often such issues are related to the specific setup. So if you encounter regressions that are definitely caused by installing the new QEMU version (and not some other change), please always include the affected VM configuration and some basic HW (e.g. CPU model) and memory details.
We welcome your feedback!
Known issues:
None at the time of publishing.
